Fuse-box.



N0. 843,553. PATBNTED FEB. 5, 1907. C. A. ROLFE.

FUSE BOX.

APPLICATION FILED ABE.19.1905.

, shown in Fig. 3-.

UK ITEI) STATES PATENT OFFICE.

oninins A. some, or aoen'n'srnn, NEW roan, ASSIGNOB TO ROLFE ELECTRIC COMPANY, or nocnnsrnannw YORK, A CORPORATION OF NEW YORK.

FUSE-BOX.

Specification of Letters Patent.

Application filed April 19,1905. Serial No. 256,512.

Patented Feb. 5, 1907.

Prominent objects of the invention are to' rovide a simple, ractical, and inexpensive orm of fuse-box y which the fuse devices can be readily renewed and by which it can be instantly told whether or not the fuses.

have blown.

In the accom anying drawings, Figure 1 1s a'plan view 0 a fuse-box embodying. my

present invention. Fig. 2 is a-longitudinal section taken on line 2 2 in Fig. 1. Fig. 3 is a transverse section taken on line 3 3 in Fig. 1.

The fuse-box .shown comprises a metallic casing 1 preferably of rectangular form and haying a cover 2. The bottom of the casing is provided with a centrally-disposed post 3, having a threaded socket, and the cover is provided with a screw 4-, whose lower end is adapted to fit into the socket in the post 3, as The screw 4 is provided with a cross-pin 5 to prevent its slipping through the cover.

A block 6 of insulating materiahpreferably wood, is arranged in the middle of the casing 1, said block being of substantially the same width as the casing, so as to fit snugly there in, and having a central aperture 7, adapted to fit over the post 3. The block 6 is provided with apertures 8 8, adapted to receive screws 9 9,.by which it can be secured to the bottom of the casing 1. The block 6 is pro? vided with two slots or grooves 10 10, running lengthwise of the box, and into these are fitted two fuse-holding devices conveniently in the iormof insulating-tubes 11 11, containing inclosed fuses 12 12. The sleeves or tubes 11 11 can be made of any insulating materialsuch, for example, as wood-and are desirably coatedwith some fireproofing substance. They are preferably provided with longitudinal slots 13 13, by which thafuses within can be seen. The ends of the sleeve 11 are provided with connecting devices for attaching the line and instrument wires,

preferably in the form of metallic caps 15 15,

secured to the ends of the sleeves 11 by screws 16 16 and provided with threaded projections 17 17, carrying lock-nuts 18 18 and washers 19 19. The sleeves 11 11 are rovided with clips 20 20, partly surroun 'ng said sleeves at their middle points, and the block 6 is provided with a cross-slot 22,into

which said "clips 20 20 are adapted to fit.; The

clips 20 20 are conveniently in the form of a band of metal extended artway around the sleeves.

and the clips 20 20 fitted into the cross-slot 22 the fuse-sleeves are firmly supported by the block 6 and are held against .endwise movement by the clips 20 20. Either or both fuse-holding sleeves can be removed by simply withdrawing them from the slot 01 slots in the block 6 and-can be as easily replaced. Thus a simple and efiective' sup Thus when t e fuse containing sleeves 11 11 are fitted-into the slots 10 10 7o porting device for the fuse-holdingsleeves is provided. The block 6 can be removed at any time, if desired, by loosening the screws 9 9. The casing lis provided at its upper end with side openings containing insulatingbushings 24 24 for the line-wires, and its lower end is provided with bushings 25 25 for the instrument wir-es.

It will be understood. that changes and modifications can be, made without departing from the spirit of the invention.

What I claim is 1. In a fuse-box, the combination with the,

casing, of a block of insulating material, devices for removably securin the bottom of the casing, saidhlockbein provided with a longitudinally-extending s ot or groove, and a cross slot or groove, a fuseholding device adapted toiit in the longitu rlinally-extending slot or groove and pro vided with a projection adapted to'fit in the cross-slot. v r

2. In a fuse-box, the combination with the casing, of a block ofinsulatingiirate'fialhaving a pair of longitudinall -extending slots, and a cross-slot crossing be of said longitudinal slots, screws for detachably securing said block to the bottom of the casing, a pair of insulating-sleeves adapted to fit into said longitudinal slots and containing inclosed fuses, and clips on said sleeves adapted to fit into said cross-slot. 1 f 3. A fuse-box comprising a casing ha. its bottom'provided with acentrell disposed said block to IOS v re

upwardly-extending p0st,a block oiinsulating adapted to fit in said cross-slot, a cover and material adapted to fit in the central portion screw for securing the same detachably in of sail casing and over said central post, said I position. block having a pair oflongitudinally-extend In witness whereof I hereunto subscribe 5 ing slots and a cross-slot out in both of said I my name this 29th day of March A 1). 1905. 15

longitudinal slots, screws for securing said 1 i block to the bottom of the casing, a pair of CHARLES ROLFE insulating-sleeves containing inclosed fuses, Witnesses: said sleeves being adapted to fit into said lon- JAMES D. IIARRIS,

" 1 gitudinal slots and being provided with clips A. M. BELFIELD. 

